Apparatus and method for surge prevention for centrifugal compressor

Abstract

Disclosed is an apparatus and method for surge prevention for a centrifugal compressor. An apparatus for surge prevention for a buffering vessel based centrifugal compressor according to the present invention includes a recycle pipe which connects a suction portion to a discharge portion of the centrifugal compressor, a cooler which cools compressed gas received according to an opening of a recycle valve disposed at the recycle pipe, a buffering vessel which stores the gas cooled by the cooler, and a compressor control unit which determines a surge occurrence condition to control opening and closing of the recycle valve and a buffer valve which is disposed at a rear stage of the buffering vessel.

Dependencies are inferred from the claim text.